.bridge-chart-shell {
    display: grid;
    gap: 0.75rem;
    width: 100%;
}

.bridge-chart-head {
    align-items: center;
    display: flex;
    gap: 1rem;
    justify-content: space-between;
}

.bridge-chart-head h2 {
    font-size: 1rem;
    margin: 0;
}

.bridge-chart-head span,
.bridge-chart-legend,
.bridge-chart-freshness {
    color: var(--muted, #667085);
    font-size: 0.82rem;
}

.bridge-chart-freshness {
    border: 1px solid var(--border, #d0d5dd);
    border-radius: 999px;
    padding: 0.25rem 0.6rem;
    white-space: nowrap;
}

.bridge-chart-stage {
    background: var(--surface, #fff);
    border: 1px solid var(--border, #d0d5dd);
    border-radius: 8px;
    min-height: 360px;
    overflow: hidden;
    position: relative;
}

.bridge-chart-canvas {
    cursor: crosshair;
    display: block;
    height: 360px;
    width: 100%;
}

.bridge-chart-tooltip {
    background: rgba(15, 23, 42, 0.92);
    border-radius: 6px;
    color: #fff;
    font-size: 0.78rem;
    left: 0;
    line-height: 1.45;
    max-width: 260px;
    padding: 0.55rem 0.65rem;
    pointer-events: none;
    position: absolute;
    top: 0;
    transform: translate(12px, 12px);
    z-index: 2;
}

.bridge-chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.bridge-chart-legend span {
    align-items: center;
    border: 1px solid var(--border, #d0d5dd);
    border-radius: 999px;
    display: inline-flex;
    min-height: 1.75rem;
    padding: 0.15rem 0.55rem;
}

.bridge-chart-empty {
    align-items: center;
    border: 1px dashed var(--border, #d0d5dd);
    border-radius: 8px;
    color: var(--muted, #667085);
    display: grid;
    gap: 0.35rem;
    min-height: 220px;
    place-content: center;
    text-align: center;
}